Secure communication is the need for ecommerce applications in order to maintain privacy of the customer data and ssl certificates are a reliable solution to that. There are products available from different certification authorities like geotrust, verisign and others. Their product range with variety of encryption and e-commerce security features provides great pricing options.

 

You could create a Self-Signed Certificate to enable SSL, but everyone will know and
some will not authorize the connection without a Root Cert that can vouch for you.